Hello,
As suggested I managed to download the file and load it up on my computer. I observed that it's missing all the textures and it has been set up with corona renderer further populated using forest pack pro plug-in. I don't have either on my system.
I need to know the actual format you want the file converted to. For now, I have converted it to something that can be imported into SketchUp.
Screenshots of the file have been uploaded to my profile, request you to check them and confirm back.
Regards,
HS